what is the meaning of "over the counter"?

what is the meaning of "over the counter"? What is the meaning of what is the meaning of the love? what's the meaning of the over? Tks! What is the real meaning of life? what is the meaning of life? what is the meaning of your life What is the ture meaning of life? what is the meaning of life What is the meaning of "love"? What is the real meaning of "love"! What is the meaning of human existence?